Jan. 26, 2014: Google purchases artificial intelligence company DeepMind Technologies for (the rumored price of) $625 million. There’s not much information on what DeepMind is making, but according to The Guardian: "[their] technology would be built into Google's search systems, rather than becoming part of its fast-expanding robotics division. Google has bought eight robotics companies, including Bot & Dolly which made the computer-controlled cameras used in the film 'Gravity.'"

Jan. 13, 2014: Google buys Nest Labs, creators of internet-enabled thermostats and smoke alarms, for $3.2 billion. Though the two companies will remain separate, VentureBeat thinks Google wants to get involved in the "connected home, the notion that all of our appliances and gadgets will soon communicate with one another."

Dec. 10, 2013: Google buys robotics companyBoston Dynamics to protect humankind from the inevitable robot uprising, or to help ship packages. You be the judge:

June 11, 2013: Google acquires Waze, a crowdsourced navigation app for smartphones, for $966 million. If you’ve noticed Google Maps better equipped to find a new route because the 405 freeway (or I-95, or the Beltway, or ...) is closed, again, you can thank Waze’s accident and construction reports.

June 4, 2012: Google buys Meebo, an instant messenger service, for $100 million. The service is now closed, and Meebo employees now focus on Google+.

Sep. 8, 2011: Google buys restaurant review company Zagat, for $125 million. The restaurant’s reviews and ratings are now embedded into Google’s search results, Google Maps and Google+ for free.

Aug. 15, 2011: Google purchases cell company Motorola Mobility for $12.5 billion. The purchase includes Motorola’s portfolio of patents and phone manufacturing, but Motorola remains an independent company from Google and even pits their own Android smartphone against Google’s phones.